Family name السي (السي 
, Alcee 
) , throughout the world, is a rare last name. The cognomen السي is characteristic of Saint Lucia, where it is quite a common surname, Egypt, where it is a rare surname, and Sudan. Likewise, السي is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| السي | Morocco, Algeria, Egypt, Sudan, Iraq |
| Alcee | United Kingdom, Saint Lucia, United States, France, Brazil |